The discovery of superconductivity in alkali fullerides with the critical temperature \(T_c\)  going from 18-19 K for K\(_3\) C\(_{60}\)  [1]} through 28-29 K for Rb\(_3\) C\(_{60}\)  [2]} to 38-40 K for Cs\(_3\) C\(_{60}\)  [3]}, [4]}, [5]} is an important event in modern science after the birth of the new form of carbon called `buckminsterfullerene' or in short fullerene [6]}. Apparently, these three-dimensional molecular solids are different in structure from the early discovered high-\(T_c\)  cuprates and recently discovered twisted graphene [7]}. They in reality share the similar superconducting phase diagram emerging from neighbouring Mott insulating state [4]}, [5]}, [7]}. This similarity fuels the hope to solve the long-standing puzzle of the mechanism of superconductivity in cuprates once knowing the key factors that govern superconductivity in fullerides due to the relatively easy realization of superconductivity with high \(T_c\)  in fullerides compared to the need of precise tuning in graphene, another purely C-based superconductor.
